As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AILERON LEFT AND RIGHT BALANCE WEIGHT ASSY FOUND BADLY CORRODED. PART REMOVED SANDBLASTED STEEL PART INSPECTED FOUND SERVICEABLE.ADEQUATE TREATMENT PRFORMED BEFORE REASSEMBLED.THIS IS CONSIDERED VERY IMPORTANT IF NO ACTION TAKEN WILL CAUSE LOST OF CONTROLS FLUTTERING AILERON.SUGGEST THAT PIPER OWNER'S OF PA28 SERIES BE ADVISED AS SOON AS POSSIBLE DUE TO THE FACT OF OLD AGE OF THE AIRCRAFT.AWD WILL SUPPORT THIS SITUATION.